Accounts filed at Companies House for the Inverness business show it got a near £6m refund as a result of VAT being overpaid for a number of years.
The interest on that payment came to £6.7m with the exceptional items giving the company a pre-tax profit of £13.06m in the 15 months to March 31 this year.
Turnover from continuing operations was £18.8m while underlying pre-tax profit in the period was at £357,292. That compares to turnover of £15.3m and pre-tax profit of £1.2m recorded in 2011.
Writing in the accounts the directors said £3m from the VAT overpayment was used to clear the deficit in the company's final salary pension scheme.
The directors added that trading conditions in the bingo business, which has 13 clubs across Scotland and the north east of England, had been impacted by weak consumer spending.
The taxation of bingo in clubs, at 20% of gross profits, was also criticised as being higher than the 15% tariff on many other forms of gaming including online bingo.
The directors said: "We see a clear favour by the tax regime towards a low employment/low tax receipt online business as against providing employment for 350 people and paying £671,000 per year in business rates on our premises."
A dividend of £505,000 was paid, up from the £193,446 in 2011 while directors' emoluments and pension contributions increased from £748,164 to £1.15m.
The highest paid director saw their package rise from £110,186 to £550,639.
Carlton Bingo was formed in 1998 when Peter Perrins, George Carter, Brian King and Chris Barr bought out the bingo interest of Taylor Clark Limited.
Those four men are all now non-executive directors at Carlton Bingo.